Articles | Volume 14, issue 7
https://doi.org/10.5194/amt-14-5089-2021
https://doi.org/10.5194/amt-14-5089-2021
Research article
 | 
28 Jul 2021
Research article |  | 28 Jul 2021

The high-frequency response correction of eddy covariance fluxes – Part 2: An experimental approach for analysing noisy measurements of small fluxes

Toprak Aslan, Olli Peltola, Andreas Ibrom, Eiko Nemitz, Üllar Rannik, and Ivan Mammarella

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Cited articles

Aslan, T., Peltola, O., Ibrom, A., Nemitz, E., Rannik, Ü., and Mammarella, I.: The high frequency response correction of eddy covariance fluxes. Part 2: An experimental approach for analysing noisy measurements of small fluxes, Zenodo [data set], https://doi.org/10.5281/zenodo.4753827, 2021. a
Aubinet, M., Grelle, A., Ibrom, A., Rannik, Ü., Moncrieff, J., Foken, T., Kowalski, A. S., Martin, P. H., Berbigier, P., Bernhofer, Ch., Clement, R., Elbers, J., Granier, A., Grünwald, T., Morgenstern, K., Pilegaard, K., Rebmann, C., Snijders, W., Valentini, R., and Vesala, T.: Estimates of the annual net carbon and water exchange of forests: the EUROFLUX methodology, Adv. Ecol. Res., 30, 113–175, 1999. a, b
Aubinet, M., Vesala, T., and Papale, D.: Eddy covariance: a practical guide to measurement and data analysis, Springer Science & Business Media, Dordrecht, The Netherlands, ISBN 978-94-007-2350-4, 2012. a, b, c, d
Biosciences, L.-C.: EddyPro software instruction manual, LI-COR Inc., Lincoln, Nebraska, USA, 2020. a
Eugster, W. and Senn, W.: A cospectral correction model for measurement of turbulent NO2 flux, Bound.-Lay. Meteorol., 74, 321–340, 1995. a
Short summary
Vertical turbulent fluxes of gases measured by the eddy covariance (EC) technique are subject to high-frequency losses. There are different methods used to describe this low-pass filtering effect and to correct the measured fluxes. In this study, we analysed the systematic uncertainty related to this correction for various attenuation and signal-to-noise ratios. A new and robust transfer function method is finally proposed.